63335161 has 2 divisors, whose sum is σ = 63335162. Its totient is φ = 63335160.

The previous prime is 63335147. The next prime is 63335171. The reversal of 63335161 is 16153336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33698025 + 29637136 = 5805^2 + 5444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63335161 is a prime.

It is a super-2 number, since 2×63335161² = 8022685237791842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63335131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31667580 + 31667581.

It is an arithmetic number, because the mean of its divisors is an integer number (31667581).

Almost surely, 2^63335161 is an apocalyptic number.

It is an amenable number.

63335161 is a deficient number, since it is larger than the sum of its proper divisors (1).

63335161 is an equidigital number, since it uses as much as digits as its factorization.

63335161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 28.

The square root of 63335161 is about 7958.3390855128. The cubic root of 63335161 is about 398.6100947524.

Adding to 63335161 its reverse (16153336), we get a palindrome (79488497).

The spelling of 63335161 in words is "sixty-three million, three hundred thirty-five thousand, one hundred sixty-one".